Wrong, wrong, wrong, wrong, wrong. Every state has its own version of the "pass left, keep right" law, but in some it is flat out illegal for you to be in the left lane if you are not actively passing or if you are impeding traffic. This is exactly the pathetically hypocritical attitude I'm talking about. Yes - people that speed break the law. However, often times, people in the left lane that aren't passing and are impeding other drivers are also breaking the law. No, its not enforced very often, but that doesn't make
you less of a criminal. Ignorance of the law is no defense, sport.
Your state of Oregon is not as strict as some (such as your neighbors to the North, Washington), but here is your law:
In other words - despite all your braggadocio, the answer to your question is that those people are guilty of a Class B violation in your state - which, by the way, is the same class of violation as speeding.
http://landru.leg.state.or.us/ors/811.html
Cliffs:
You are flat out wrong.